CN107045361A - Double-loop temperature control module and electronic element testing equipment with same - Google Patents
Double-loop temperature control module and electronic element testing equipment with same Download PDFInfo
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- CN107045361A CN107045361A CN201611035746.1A CN201611035746A CN107045361A CN 107045361 A CN107045361 A CN 107045361A CN 201611035746 A CN201611035746 A CN 201611035746A CN 107045361 A CN107045361 A CN 107045361A
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- temperature
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- working fluid
- switching valve
- supply
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- 239000012530 fluid Substances 0.000 claims abstract description 105
- 238000001816 cooling Methods 0.000 claims abstract description 58
- 238000010992 reflux Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 abstract description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 230000005619 thermoelectricity Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005679 Peltier effect Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- ULWHHBHJGPPBCO-UHFFFAOYSA-N propane-1,1-diol Chemical class CCC(O)O ULWHHBHJGPPBCO-UHFFFAOYSA-N 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2855—Environmental, reliability or burn-in testing
- G01R31/2872—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation
- G01R31/2874—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation related to temperature
- G01R31/2875—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation related to temperature related to heating
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2855—Environmental, reliability or burn-in testing
- G01R31/2872—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation
- G01R31/2874—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation related to temperature
- G01R31/2877—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation related to temperature related to cooling
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
- F25B21/04—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect reversible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/021—Control thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/021—Control thereof
- F25B2321/0212—Control thereof of electric power, current or voltage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/025—Removal of heat
- F25B2321/0252—Removal of heat by liquids or two-phase fluids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Automation & Control Theory (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Control Of Temperature (AREA)
Abstract
The invention relates to a double-loop temperature control module and electronic element testing equipment with the same, wherein a first working fluid with a first temperature flows in a first loop, a second working fluid with a second temperature flows in a second loop, a controller controls a first switching valve to enable the first working fluid or the second working fluid to flow through a temperature adjusting control, and controls a second switching valve to enable the working fluid flowing through the temperature adjusting control to flow back to the first loop or the second loop. Therefore, the thermoelectric cooling element can be adjusted to two different reference temperatures by the temperature adjusting part heated or cooled by the working fluid, and the thermoelectric cooling element can provide a larger temperature difference range and more accurate temperature adjustment and control for the element to be detected based on the reference temperatures so as to facilitate high and low temperature detection.
Description
Technical field
The present invention relates to a kind of double loop temperature control modules and possesses the electronic components test equipment of the module, particularly
A kind of temperature control modules and electronic components test equipment for providing and quickly and significantly switching high/low temperature detection temperature are provided.
Background technology
For currently available technology, the technology phase of the bigger temperature detection range of electronic component detection equipment can be assigned
When rare, for example, low temperature detection and high temperature test can be handled simultaneously.
U.S. Patent Application Publication No. 2015/0007973A1 discloses one kind " wide area temperature control equipment " (WIDE
RANGE OF TEMPERATURE CONTROL EQUIPMENT), there is disclosed the modulation that temperature is provided with thermoelectric cooling module,
And the fiducial temperature of the thermoelectric cooling module is provided with heat-conducting plate, so that thermoelectric cooling module is based on the fiducial temperature, carry out more
Accurate and larger range of temperature adjusting.However, in above-mentioned patent application, being utilized respectively heating unit and cooling element coming
The regulation and control of fiducial temperature are carried out to the heat-conducting plate, wherein heating unit is the heating coil being embedded in heat-conducting plate, and cool down member
Part is then the cooling device being additional in addition on heat-conducting plate, the cooling being for example made up of evaporator, compressor and condenser
Equipment.
Furthermore, for the technological means disclosed in above-mentioned patent document, when carrying out high/low temperature change detection, for example
When heat-conducting plate is in -40 DEG C of state, and after the completion of low-temperature test, it is necessary to by heating unit heats to high temperature (such as 80 DEG C),
To carry out high temperature test.However, the transfer process of whole high/low temperature is relatively slow, and if each element under test is set
It is set to and carries out high/low temperature test in same board, will be so repeated continuously and heat-conducting plate is heated up and cooled, and not only delay
Whole test time-histories, and its heating unit and cooling device will also expend the substantial amounts of energy.
The content of the invention
It is a primary object of the present invention to provide a kind of double loop temperature control modules, rapidly to switch at least two
Individual temperature range, allows temperature adjusting part to carry out the conversion between different temperatures, and its transfer process in a short period of time
Caused energy loss is very low.
To reach above-mentioned purpose, double loop temperature control modules of the invention mainly include：First loop, second servo loop,
Temperature adjusting part, the first switching valve, the second switching valve and controller.Flowing has first with the first temperature in first loop
Flowing has the second working fluid with second temperature in working fluid, second servo loop；And temperature adjusting part include entrance and
Outlet；First switching valve is connected with the entrance in the first loop, second servo loop and temperature adjusting part；Second switching valve with first time
The outlet on road, second servo loop and temperature adjusting part；Controller and the first switching valve and the second switching valve are electrically connected with.
Wherein, controller controls the first switching valve at least one of the first working fluid and the second working fluid is flowed through temperature adjusting
Part is to carry out temperature adjusting to it, and the second switching valve of control flows through the first working fluid and the second work of temperature adjusting part
At least one of fluid is back at least one of the first loop and second servo loop.
Accordingly, the present invention controls the first switching valve and the second switching valve by controller, so switch the first loop or
Second servo loop or allotment be somebody's turn to do the two, the first working fluid, the second working fluid or the fluid-mixing of the two is come to temperature
Degree regulation piece is heated up or cooled.
Even more preferably, double loop temperature control modules of the invention may also include cooling device, and it may be disposed at first
Loop simultaneously is used to cool down the first working fluid.In other words, the first working fluid can be cooled down by cooling device is set up,
The working fluid of low temperature is provided with profit.
In addition, the first loop of the double loop temperature control modules of the present invention may also include first fluid source of supply, it is used
In first working fluid of the supply with the first temperature, and first fluid source of supply may include the first supply opening and the first backflow
Mouthful；And cooling device may be disposed at first fluid source of supply；Wherein, the first switching valve is communicated to the first of first fluid source of supply
Supply opening, the second switching valve is communicated to the first refluxing opening of first fluid source of supply.Accordingly, the present invention can be supplied by first fluid
Answer source and more low temperature and the more stable working fluid of state of temperature are provided.
Even more preferably, double loop temperature control modules of the invention may also include heat abstractor, and it is arranged at second time
Road, and for being radiated to the second working fluid.In other words, can by set up heat abstractor come to the second working fluid carry out
Radiating, state of temperature more stable normal temperature working fluid is provided with profit.
Furthermore, double loop temperature control modules of the invention may also include heater, and it may be disposed at second servo loop simultaneously
For being heated to the second working fluid.In other words, the second working fluid can be heated by heater is set up,
The working fluid of high temperature is provided with profit.
Also, the second servo loop of the double loop temperature control modules of the present invention may also include second fluid source of supply, it is used for
Second working fluid of the supply with second temperature, and second fluid source of supply includes the second supply opening and the second refluxing opening；
And heater is arranged at second fluid source of supply；Wherein, the first switching valve is communicated to the second supply of second fluid source of supply
Mouthful, the second switching valve is communicated to the second refluxing opening of second fluid source of supply.Accordingly, the present invention can be by second fluid source of supply
And working fluid at higher temperature and more stable state of temperature is provided.
Further, double loop temperature control modules of the invention may also include pump, and it is electrically connected to controller, and sets
It is placed between the first switching valve and temperature adjusting part.Accordingly, the present invention can drive the first working fluid and second by pump
Working-fluid flow.
In addition, another main purpose of the present invention is to provide a kind of electronic component for possessing double loop temperature control modules
Test equipment, can provide the fiducial temperature that at least two temperature spreads are big, enables thermoelectric cooling element to be based on the fiducial temperature
Bigger temperature difference scope and more accurate temperature adjusting are provided to element under test, is detected with the high/low temperature that profit carries out electronic component.
To reach above-mentioned purpose, the electronic components test equipment for possessing double loop temperature control modules of the invention is mainly wrapped
Include：Foregoing double loop temperature control modules and thermoelectric cooling element.Thermoelectric cooling element is electrically connected to controller, and with
Temperature adjusting part is contacted.Wherein, temperature adjusting part adjustable heat electric refrigerating element is to fiducial temperature, and controller can control thermoelectricity
Cooling element is based on fiducial temperature to carry out temperature adjusting to element under test.
Accordingly, the electronic components test equipment for possessing double loop temperature control modules of the invention can be by double loop temperature
Control module carrys out the temperature of modulation temperature adjusting part, and the temperature will constitute fiducial temperature, makes thermoelectric cooling element in benchmark temperature
On the basis of degree, further expand the scope of temperature adjusting and the detection temperature of element under test is more accurately provided.
Even more preferably, the electronic components test equipment for possessing double loop temperature control modules of the invention may also include survey
Fixture is tried, it is contacted with thermoelectric cooling element, and element under test is loaded into test fixture.In other words, thermoelectric cooling element pair
Test fixture carries out temperature adjusting, and when being tested, element under test is placed in test fixture, therefore the test of the present invention
Fixture can build the test environment of a variety of different temperatures.On the other hand, the present invention can also make not using test fixture as necessity
The direct contact measured element of thermoelectric cooling element, makes thermoelectric cooling element directly carry out temperature adjusting to element under test.
Furthermore, the electronic components test equipment for possessing double loop temperature control modules of the invention may also include temperature sensing
Unit, it is electrically connected to controller, and for measuring the temperature of test fixture.That is, the present invention can be by temperature sensing list
Member senses the temperature of test fixture, is controlled with the feedback that supply controller enters trip temperature, so that more accurate control element under test
Detection temperature.
Brief description of the drawings
Fig. 1 is the system framework figure of first embodiment of the invention.
Fig. 2 is the schematic diagram of first embodiment of the invention.
Schematic diagram when Fig. 3 A run for the first loop in first embodiment of the invention.
Schematic diagram when Fig. 3 B run for second servo loop in first embodiment of the invention.
Fig. 4 is the system framework figure of second embodiment of the invention.
Fig. 5 is the schematic diagram of second embodiment of the invention.
Embodiment
The present invention double loop temperature control modules and possess the electronic components test equipment of the module in the present embodiment
Before being described in detail, it is important to note that in the following description, similar element will carry out table with identical component symbol
Show.Furthermore, accompanying drawing of the invention is only as schematically illustrate, and it is not necessarily drawn to scale, and all details also may not be all presented
In accompanying drawing.
Please refer to Fig. 1, Fig. 2, Fig. 1 possesses the electronic components test equipment of double loop temperature control modules for the present invention
The system framework figure of first embodiment, Fig. 2 is the electronic components test equipment for possessing double loop temperature control modules of the invention
The schematic diagram of first embodiment.As shown in FIG., the double loop temperature control modules of the present embodiment mainly include the first loop 11,
Second servo loop 12, first fluid source of supply 2, heat abstractor 30, the first switching valve 4, the second switching valve 5, temperature adjusting part 6 and
Controller 7.
Wherein, being flowed in the first loop 11 has the first working fluid F1 with the first temperature T1, and the first working fluid
F1 is supplied by first fluid source of supply 2.Also, first fluid source of supply 2 includes cooling device 20, and it is used for cooling first
Working fluid F1, is allowed to be maintained at the first temperature T1；And the cooling device 20 of the present embodiment can be general fluid cooling device,
The cooling device being for example made up of compressor, condenser, expansion valve and evaporator.
In other words, first fluid source of supply 2 provides the first working fluid F1 of low temperature, to carry out low-temperature test.In addition,
First fluid source of supply 2 includes the first workflow in the first supply opening 21 and the first refluxing opening 22, that is, the first loop 11
Body F1 flows out from the first supply opening 21, and flows back to first fluid source of supply 2 from the first refluxing opening 22, is circulated so as to constituting.
Furthermore, flowing has the second working fluid F2 with second temperature T2 in second servo loop 12, and in second servo loop 12
Heat abstractor 30 is installed, it is used to radiate to the second working fluid F2, is allowed to be maintained at second temperature T2.The present embodiment
Heat abstractor 30 can for general air cooling, water cooling or it is other it is any form of can with normal temperature air carry out heat exchange radiator.
In other words, the heat abstractor 30 of the present embodiment can provide the first working fluid F1 of normal temperature state.
In addition, the first working fluid F1 used in the present embodiment and the second working fluid F2 can be general low temperature resistant molten
Liquid, the non-freezing solution such as known to methanol, ethanol, ethylene glycol, propyl alcohol, propane diols；Or made by water, antifreezing agent, additive mixing
Into.Moreover, can be divided into Alcohol type, glycerol type and ethylene glycol type coolant according to antifreeze component difference, and ethylene glycol type is cooled down
Liquid is spent glycol as antifreezing agent, and adds the composite additives such as a small amount of anti-foaming, anticorrosion.
In addition, temperature adjusting part 6 is the subject matter being adjusted in the double loop temperature control modules of the present embodiment, it includes
Entrance 61 and outlet 62, and the inside of temperature adjusting part 6 of the present embodiment includes snakelike passage (not shown), the passage
Both ends are entrance 61 and outlet 62.But, the present invention is not limited with internal serpentine channel, also can be other pipeline forms
Or other arbitrary heat exchanger forms are replaced in the way of attaching on temperature adjusting part 6 or being built in temperature adjusting part 6.
Again as shown in FIG., the first switching valve 4 and the second switching valve 5 can be controlled by controller 7 for the magnetic valve of threeway.Its
In, the first switching valve 4 is communicated to the first supply opening 21, heat abstractor 30 and the temperature adjusting part 6 of first fluid source of supply 2
Entrance 61；Also, the first refluxing opening 22, heat abstractor 30 and temperature that the second switching valve 5 is communicated to first fluid source of supply 2 are adjusted
The outlet 62 of control 6.
Moreover, as shown in FIG., pump 9 is arranged between the first switching valve 4 and temperature adjusting part 6, and is electrically connected to control
Device 7 processed.In other words, controller 7 can be with the operating of controlling pump 9, and pushes by pump 9 work of first working fluid F1 or second
Fluid F2 flows in loop, circulated.
Furthermore, the controller 7 of the present embodiment is electrically connected to the first switching valve 4 and the second switching valve 5 again.Wherein, control
Device 7 controls the first switching valve 4 to make the first working fluid F1 or the second working fluid F2 flow through temperature adjusting part 6 to carry out temperature to it
Degree regulation and control, and the second switching valve 5 of control flows through the first working fluid F1 or the second working fluid F2 backflow of temperature adjusting part 6
To the first loop 11 or second servo loop 12.
And shown in as shown in Figure 1, Figure 2, the electronic components test equipment of the present embodiment is except including above-mentioned double loop temperature
Outside control module, in addition to thermoelectric cooling element 8 (Thermo-Electric Cooler, TEC), test fixture 81, temperature sense
Survey unit 82 and pump 9.Wherein, thermoelectric cooling element 8 is electrically connected to controller 7, and is directly contacted with temperature adjusting part 6.
However, the temperature adjusting part 6 of the present embodiment is used to adjust thermoelectric cooling element 8 to fiducial temperature, and controller 7 is then control heat
Electric refrigerating element 8 is based on fiducial temperature to carry out element under test C wider and more accurate temperature adjusting.
In other words, the running theoretical foundation of thermoelectric cooling element 8 used in the present embodiment is to utilize Pi Teer effects
(Peltier Effect), this is a kind of pyroelectric effect, can cause side temperature by the heat transmission of the element side to opposite side
Degree reduction, the rise of opposite side temperature；Side is absorbed heat, and to opposite side heat release.In general, the knot of thermoelectric cooling element 8
Structure is mutually to be concatenated arrangement by some to N-type and P-type semiconductor crystal grain and formed, and after energization, the P-type semiconductor will be inhaled
Heat, and N-type semiconductor will heat release, therefore just there is heat to be delivered to other side by side " heat absorbing end " in each N/P unit
" release end of heat ", to complete the transmission of heat.Accordingly, the present embodiment utilizes this effect, when high temperature to be carried out or low-temperature test,
Temperature adjusting part 6 will adjust thermoelectric cooling element 8 to fiducial temperature, and the temperature adjusting part 6 will be constantly from thermoelectric cooling member
Part 8, which takes away heat or provides heat, gives thermoelectric cooling element 8, to maintain the fiducial temperature.
On the other hand, test fixture 81 is used to load element under test C, such as test jack (socket), and thermoelectric cooling
Element 8 is is mounted directly on test fixture 81, therefore thermoelectric cooling element 8 can be heated up or be cooled to test fixture 81, and then
The detection environment of specified temp (high temperature, normal temperature or low temperature) is built, element under test C is entered in the state of the specified temp
Row test.In addition, the present embodiment also separately sets temperature sensing unit 82, it is electrically connected to controller 7, temperature sensing unit 82
It is mainly used in measuring the temperature of test fixture 81.That is, Temperature Quantity measured value of the present embodiment by temperature sensing unit 82
Feedback, controller 7 is carried out more accurate temperature control to thermoelectric cooling element 8.
What is particularly worth mentioning is that, controller 7 is responsible for the control of all electronic devices in the present embodiment, including first cuts
The components such as valve 4, the second switching valve 5, cooling device 20, thermoelectric cooling element 8 and pump 9 are changed, and control element under test C's whole
The progress of test.But, the present invention is not limited thereto, and separate members can also possess respective controller, such as cooling device
20 controller is full-time in controlling its operating, the first working fluid F1 is maintained at the first temperature T1.
Signal when being run please refer to Fig. 3 A and Fig. 3 B, Fig. 3 A for the first loop 11 in first embodiment of the invention
Figure, schematic diagram when Fig. 3 B run for second servo loop 12 in first embodiment of the invention.Illustrate the running stream of the present embodiment below
Journey, illustrates low-temperature test first, and second servo loop 12, i.e. the first switching valve 4 and the second switching valve 5 are closed in the wherein control of controller 7
Close respectively and be communicated to the runner of heat abstractor 30, and open the first supply opening 21 for being communicated to first fluid source of supply 2 and the
The runner of one refluxing opening 22, so as to constitute circulation loop, as shown in fig. 3.
However, due to the first working fluid F1 in the first loop 11 to be cooled down through apparatus for supercooling 20, therefore low temperature is presented,
The present embodiment is illustrated exemplified by -20 DEG C.Accordingly, after the first working fluid F1 of low temperature flows through temperature adjusting part 6, its
Chilling temperature regulation piece 6, is allowed to equally be maintained at -20 DEG C.Accordingly, the fiducial temperature for giving thermoelectric cooling element 8 just can be provided
For -20 DEG C, but according to the characteristic of thermoelectric cooling element 8, its temperature that -40 DEG C to+80 DEG C can be provided in fiducial temperature is adjusted
Become, in other words, the temperature range that can be precisely controlled is -60 DEG C to 60 DEG C.
Furthermore, after element under test C completes low-temperature test, immediately into high temperature test.Wherein, the control of controller 7 is closed
First loop 11, i.e. the first switching valve 4 and the second switching valve 5 are closed respectively is communicated to the runner of first fluid source of supply 2, and opens
The runner for being communicated to heat abstractor 30 is opened, so as to constitute circulation loop, as shown in Figure 3 B.
However, due to when the second working fluid F2 in second servo loop 12 flows through temperature adjusting part 6, by script through first time
Road 11 is cooled down and the temperature adjusting part 6 in low-temperature condition is rapidly warming up to normal temperature, and through the running of heat abstractor 30
Also it can be continuously kept in normal temperature, the present embodiment is illustrated exemplified by 25 DEG C.Accordingly, when the second working fluid F2 of low temperature flows
After temperature adjusting part 6, it makes the temperature adjusting part 6 of cooling be maintained at 25 DEG C.Accordingly, second servo loop 12 just can provide and give thermoelectricity
The fiducial temperature of cooling element 8 is 25 DEG C；In other words, under this loop, the Range of measuring temp that controller 7 can be precisely controlled
For -15 DEG C to 105 DEG C.
Furthermore, by taking the present embodiment as an example, the test temperature of high and low temperature is respectively -40 DEG C and 85 DEG C, and when from first time
When road 11 switches to second servo loop 12, i.e., 85 DEG C of high temperature test are warming up to from -40 DEG C of low-temperature test, actual test only consumes
Take about 64 seconds.In other words, whole temperature-rise period is about rapidly heated with 2 DEG C per second of speed.On the other hand, when from second servo loop 12
When switching to the first loop 11, i.e., -40 DEG C of low-temperature test are cooled to from 85 DEG C of high temperature test, actual test also only expends
About 117 seconds.In other words, whole temperature-fall period is with the speed fast cooling per second more than 1 DEG C.Accordingly, it should be apparent that, it is high and low
Temperature test can quickly be changed on same board, without being transported to other boards, need not more expend very long heating or drop
The stand-by period of temperature, and the loss that will greatly save the energy.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is the electronic components test for possessing double loop temperature control modules of the invention
The system framework figure of equipment second embodiment, Fig. 5 is the electronic components test for possessing double loop temperature control modules of the invention
The schematic diagram of equipment second embodiment.The present embodiment is that the present embodiment can be provided with aforementioned first embodiment Main Differences
The high temperature test of higher temperature.
Further illustrate, as shown in FIG., the present embodiment, which is mainly, normal temperature working fluid is provided in first embodiment
Heat abstractor 30 is substituted for second fluid source of supply 3 and its internal heater 33 included.Wherein, second fluid source of supply
3 include the second supply opening 31 and the second refluxing opening 32, that is, the second working fluid F2 systems in second servo loop 12 supply from second
Mouth 31 flows out, and flows back to second fluid source of supply 3 from the second refluxing opening 32, is circulated so as to constituting.
However, the present embodiment can provide work at higher temperature and more stable state of temperature by second fluid source of supply 3
The heater 33 of fluid, wherein the present embodiment is used to heat up to the second working fluid F2, and thermoelectric cooling member is given to provide
The higher fiducial temperature of part 8, allows thermoelectric cooling element 8 to build test environment at higher temperature.
Above-described embodiment is illustrated only for conveniently explanation, and the interest field that the present invention is advocated should be wanted with right certainly
Ask protected scope to be defined, rather than be only limitted to above-described embodiment.
Symbol description
11 first loops
12 second servo loops
2 first fluid sources of supply
20 cooling devices
21 first supply openings
22 first refluxing openings
3 second fluid sources of supply
30 heat abstractors
31 second supply openings
32 second refluxing openings
33 heaters
4 first switching valves
5 second switching valves
6 temperature adjusting parts
61 entrances
62 outlets
7 controllers
8 thermoelectric cooling elements
81 test fixtures
82 temperature sensing units
9 pumps
C element under tests
The working fluids of F1 first
The working fluids of F2 second
The temperature of T1 first
T2 second temperatures.
Claims (10)
1. a kind of double loop temperature control modules, including：
- the first loop, flowing has the first working fluid with the first temperature in it；
- second servo loop, flowing has the second working fluid with second temperature in it；
- temperature adjusting part, it is included an inlet and an outlet；
- the first switching valve, it is communicated to the entrance in first loop, the second servo loop and the temperature adjusting part；
- the second switching valve, it is communicated to the outlet in first loop, the second servo loop and the temperature adjusting part；And
- controller, it is electrically connected to first switching valve and second switching valve；
Wherein, the controller controls first switching valve to make at least one of first working fluid and second working fluid
The temperature adjusting part is flowed through to carry out it temperature adjusting, and control second switching valve flow through the temperature adjusting part this
At least one of one working fluid and second working fluid are back at least one in first loop and the second servo loop
Person.
2. double loop temperature control modules as claimed in claim 1, it also includes cooling device, and the cooling device is arranged at this
First loop simultaneously is used to cool down first working fluid.
3. double loop temperature control modules as claimed in claim 2, wherein, first loop also includes first fluid and supplied
Source, it supplies the first working fluid with first temperature, and the first fluid source of supply includes the first supply opening and first time
Head piece；The cooling device is arranged at the first fluid source of supply；First switching valve is communicated to the of the first fluid source of supply
One supply opening, second switching valve is communicated to the first refluxing opening of the first fluid source of supply.
4. double loop temperature control modules as claimed in claim 1, it also includes heat abstractor, and the heat abstractor is arranged at this
Second servo loop simultaneously is used to radiate to second working fluid.
5. double loop temperature control modules as claimed in claim 1, it also includes heater, and the heater is arranged at this
Second servo loop simultaneously is used to heat second working fluid.
6. double loop temperature control modules as claimed in claim 5, wherein, the second servo loop also includes second fluid and supplied
Source, it supplies the second working fluid with the second temperature, and the second fluid source of supply includes the second supply opening and second time
Head piece；The heater is arranged at the second fluid source of supply；First switching valve is communicated to the of the second fluid source of supply
Two supply openings, second switching valve is communicated to second refluxing opening of the second fluid source of supply.
7. double loop temperature control modules as claimed in claim 1, it also includes pump, and the pump is electrically connected to the controller,
And be arranged between first switching valve and the temperature adjusting part.
8. a kind of electronic components test equipment for possessing double loop temperature control modules, including：
Such as double loop temperature control modules according to any one of claims 1 to 7；And
- thermoelectric cooling element, it is electrically connected to the controller, and is contacted with the temperature adjusting part；
Wherein, the temperature adjusting part is adjusts the thermoelectric cooling element to fiducial temperature, and the controller controls thermoelectric cooling member
Part is based on the fiducial temperature to carry out temperature adjusting to element under test.
9. the electronic components test equipment as claimed in claim 8 for possessing double loop temperature control modules, it also includes test
Fixture, the test fixture is contacted with the thermoelectric cooling element, and the element under test is loaded into the test fixture.
10. the electronic components test equipment as claimed in claim 9 for possessing double loop temperature control modules, it also includes temperature
Sensing unit, the temperature sensing unit is electrically connected to the controller, and for measuring the temperature of the test fixture.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105103932 | 2016-02-05 | ||
| TW105103932A TWI587114B (en) | 2016-02-05 | 2016-02-05 | Dual loop type temperature control module and electronic device testing apparatus provided with the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107045361A true CN107045361A (en) | 2017-08-15 |
| CN107045361B CN107045361B (en) | 2019-03-15 |
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ID=59496283
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611035746.1A Active CN107045361B (en) | 2016-02-05 | 2016-11-23 | Electronic component testing equipment with double-loop temperature control module |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US9983259B2 (en) |
| CN (1) | CN107045361B (en) |
| TW (1) | TWI587114B (en) |
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| CN108227774A (en) * | 2017-12-27 | 2018-06-29 | 河北工程大学 | A kind of device that photosynthesis measurement system temperature control range is extended by circulation alcohol |
| CN110488796A (en) * | 2019-08-14 | 2019-11-22 | 武汉克莱美特环境设备有限公司 | A kind of liquid-cooling heat radiation circuit board integrated environment simulation box |
| CN112578257A (en) * | 2021-02-26 | 2021-03-30 | 杭州长川科技股份有限公司 | Temperature control testing device and testing equipment |
| CN113063238A (en) * | 2021-03-11 | 2021-07-02 | 深圳荆虹科技有限公司 | Temperature adjusting device and adjusting method |
| CN113125881A (en) * | 2021-03-11 | 2021-07-16 | 深圳荆虹科技有限公司 | Electronic product detection system and electronic product detection device |
| CN116520134A (en) * | 2022-11-09 | 2023-08-01 | 珠海精实测控技术股份有限公司 | Temperature control testing system |
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| WO2022168379A1 (en) * | 2021-02-05 | 2022-08-11 | 東洋エンジニアリング株式会社 | Heat pump unit |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20170227599A1 (en) | 2017-08-10 |
| TWI587114B (en) | 2017-06-11 |
| CN107045361B (en) | 2019-03-15 |
| US9983259B2 (en) | 2018-05-29 |
| TW201729028A (en) | 2017-08-16 |
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